Multiferroism and magnetoelectric coupling in (PbZr0.65Ti0.35O3)0.97–(BaFe12O19)0.03 ceramic composites

The ferroelectric, magnetic, and magneto-electric properties of a PZT/Ba-hexaferrite (PbZr0.65Ti0.35O3/BaFe12O19) ceramic composite are reported. The expected rhombohedral-PZT and Ba-hexaferrite phases have been confirmed from structural and Rietveld refinement analyses, without additional undesired...

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Bibliographic Details
Published in:Journal of applied physics 2013-12, Vol.114 (22)
Main Authors: Guerra, J. D. S., Pal, Madhuparna, Portugal, R. J., Cótica, L. F., Santos, I. A., Guo, R., Bhalla, A. S.
Format: Article
Language:English
Subjects:
Barium hexaferrite
Ceramics
Dielectric constant
Electric properties
Ferroelectric materials
Ferroelectricity
Hysteresis loops
Magnetic fields
Magnetic properties
Multiferroic materials
Permittivity
Phases
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Summary:The ferroelectric, magnetic, and magneto-electric properties of a PZT/Ba-hexaferrite (PbZr0.65Ti0.35O3/BaFe12O19) ceramic composite are reported. The expected rhombohedral-PZT and Ba-hexaferrite phases have been confirmed from structural and Rietveld refinement analyses, without additional undesired phases. Well-saturated ferroelectric and magnetic hysteresis loops confirmed the ferroelectric and magnetic nature of the study system, revealing enhanced characteristics when compared to those reported for typical multiferroics. The existence and enhancement of the magneto-electric response have been demonstrated by measuring the effect of the external DC magnetic field on the dielectric permittivity. The obtained results suggest an excellent candidate for room temperature multiferroic system with enhanced properties.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4848998